England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates

33,620Searchable applications

313Recorded as pending

87%Approval rate · 28,142 approved or refused records

3,686Refused applications

24,456 approved · 3,686 refused · 1,748 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Planning information Planning and building Local plan Our Local Plan Pre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation Area Article 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records

Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

Decided - Granted6/2021/1774/HOUSE
Erection of a single storey front extension
43 Stag Green Avenue Hatfield AL9 5EB
Received 7 Jun 2021
Decided - GrantedS6/2014/2098/DS
Approval of details reserved by condition 4 (materials), 5 (Waste) and 6 (External lighting) of planning permission S6/2014/1147/FP
Little Elephant, High Road, Essendon, Hatfield, AL9 6HR
Received 23 Sept 2014
Appeal Decided - Dismissed6/2018/1319/HOUSE
Erection of a single storey rear, part two, part single storey Front Extension and replacement of existing flat roof following demolition of existing laundry/Store Building
1 Rollswood Road Welwyn AL6 9TX
Received 18 May 2018
Decided6/2021/2099/TC
Reduce 1 x Ash by 4m
74 Valley Road Welwyn Garden City AL8 7DP
Received 12 Jul 2021
Decided - Granted6/2026/1223/HOUSE
Front boundary alterations including new vehicular access gates and minor soft landscaping alterations
100 Tolmers Road Cuffley Potters Bar EN6 4JJ
Received 13 Jul 2026
Decided - Granted6/2023/0412/EM
Installation of Bicycle Storage
35 The Vineyard, Welwyn Garden City, AL8 7PY
Received 22 Feb 2023
Decided - Granted6/2024/0289/HOUSE
Proposed internal and external refurbishments including, reposition existing timber front door, new infill extension with external black stained timber cladding to tie-in and match existing, new timber frame double glazed windows/doors, convert store/garage to art studio, new rooflight to match existing, enlarge opening with new timber frame double glazed door and associated landscaping works
57 The Ryde Hatfield AL9 5DQ
Received 12 Feb 2024
Decided - Granted6/2020/3171/EMT
Willow (T1) - fell/remove for proposed erection of outbuilding Laburnum (T2) - fell/remove for proposed erection of outbuilding Laurel (T3) - fell/remove for proposed erection of outbuilding Apple (T4) - reduce height by 1.5m + reduce width by 2m
46 Fordwich Road Welwyn Garden City AL8 6EY
Received 25 Nov 2020
Decided - Refused6/2021/2078/HOUSE
Erection of a two storey side extension following demolition of existing garage
3 Fawn Court Hatfield AL9 5DJ
Received 9 Jul 2021
Decided - Granted6/2016/1031/FULL
Proposed change of use to first and second floor from use class C3 (Dwelling House) to use class C4 (HMO)
8A Harpsfield Broadway Hatfield AL10 9TF
Received 24 May 2016
Decided - Refused6/2016/0809/TPO
Pollard oak tree to 3m covered by TPO 546
Land at 18 Sandpiper Close, Hatfield, AL10 9UQ
Received 27 Apr 2016
Decided - Split6/2022/2563/COND
Submission of details pursuant to condition number 1 (material samples), 2 (glass balustrades), 3 (hard landscaping) and 4 (obscured glazing), on planning permission 6/2018/1879/HOUSE
24 Heathbrow Road Welwyn AL6 0QG
Received 9 Nov 2022
Decided - Granted6/2026/0597/HOUSE
Erection of a single storey side extension
125 Knella Road Welwyn Garden City AL7 3NA
Received 7 Apr 2026
Decided - Withdrawn6/2017/1692/EM
Reduce Cherry tree crown by 10% plus removal of dead and cross over branches
37 Valley Road Welwyn Garden City AL8 7DH
Received 2 Aug 2017
Decided - Granted6/2024/1201/LAWE
Certificate of lawfulness for the existing use of ground floor as 4 separate self-contained residential units
53 Flat 1 Roe Green Close Hatfield AL10 9PF
Received 27 Jun 2024
Decided - Withdrawn6/2020/2631/VAR
Variation of condition 18 of planning application ref: 6/2019/1851/VAR (Removal of conditions 19 (hours of operation of machinery) and 20 (times of deliveries) on planning permission 6/2018/2726/MAJ) in order to use the entire site for B2/B8 Class only.
The Holdings Cole Green Lane Welwyn Garden City AL7 4AL
Received 12 Oct 2020
Decided - Refused6/2020/1102/EM
Erection of a two storey side extension
14 Lemsford Lane Welwyn AL8 6YJ
Received 15 May 2020
Decided - GrantedN6/2013/1357/TC
Reduce Silver Birch tree by 20%
11 Roundwood Drive, WELWYN GARDEN CITY, AL8 7JZ
Received 24 Jun 2013
Decided - Granted6/2020/0933/LAWP
Certificate of lawfulness for the use of the existing ancillary nightclub as a lecture theatre (Class D1) with associated alterations
The Forum University Of Hertfordshire College Lane Hatfield AL10 9AB
Received 27 Apr 2020
Decided - Granted6/2018/0415/PN8
Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.5m in height and 2.5m to the eaves
25 Calder Avenue Hatfield AL9 7AH
Received 8 Feb 2018
Decided - Granted6/2017/0304/HOUSE
Erection of a part single and part two storey front, side and rear extension following demolition of existing detached garage; alterations to roof.
103 Tolmers Road, Cuffley, Potters Bar, EN6 4JL
Received 17 Feb 2017
Decided - GrantedN6/2015/0151/FP
Erection of single storey rear and first floor side extension and repositioning of garden gate
8 Salisbury Gardens, Welwyn Garden City, AL7 3RS
Received 27 Jan 2015
Decided - Granted6/2017/0617/TPO
Removal of Cherry tree and Conifer hedge plus 30% crown reduction of 3 Conifer trees - Conservation Area - Dead & Dangerous
2 Guessens Road Welwyn Garden City AL8 6QR
Received 21 Mar 2017
Decided - Granted6/2023/0877/HOUSE
Erection of a two storey front extension and part single, part two storey side and rear extension
7 Cranmer Close Little Heath Potters Bar EN6 1LB
Received 25 Apr 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
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Published 16 Jul 2026Updated 13 Sept 2026
Understanding planning · 13 min read
Planning permission drawings: how to read plans
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.
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Published 6 Aug 2026Updated 13 Sept 2026
Property research · 13 min read
Planning approval rates: how to read council statistics
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
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Published 13 Aug 2026Updated 13 Sept 2026

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage